Scala Pattern Matcher Case Class

MatcherCaseClasses.scala

object MatcherCaseClasses extends App {
   
   import scala.reflect.BeanProperty 
   
   trait DayOfWeek{
       @BeanProperty var whatTodo:String
   }
   case class Monday(@BeanProperty   var whatTodo:String) extends DayOfWeek
   case class Saturday(@BeanProperty var whatTodo:String) extends DayOfWeek
   case class Sunday(@BeanProperty   var whatTodo:String) extends DayOfWeek
   
   class JobChecker(){
	   def check(dow:DayOfWeek) = dow match{
	       case Monday("Soccer") 	   		=> println("NO 1")
	       case Saturday(s) if s.contains("Party")  => println("OK 1")
	       case Monday(_) 		 		=> println("OK 2")
	       case _ 			        	=> println("? = NO 2") 
	   }
   }
   
   new JobChecker().check(new Monday("Soccer"))
   new JobChecker().check(new Saturday("Hard Party"))
   new JobChecker().check(new Monday("whatever"))
   
}